MONACOR SPH-135/AD

Mid-range

5.5″ / 135 mm
Nominal diameter
39 Hz
Resonance
0.37
Q factor
87 dB
Sensitivity
± 1.75 mm
Linear excursion
60 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
87.4
dB
Frequency response
39 - 6000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.37

Large signal parameters

Maximum linear excursion
xmax
1.75
mm
Air volume displaced at xmax
VD
17
cm³
Power handling
P
40
W
Program power
Pmax
60
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.47
mH
VC Diameter
26
mm
Winding material
Kapton

Magnet

Force factor
Bl
5.0
N/A
Motor constant
Bl/√RE
2.13
N/√W
Diameter
100
mm
Weight
0.38
kg

Diaphragm

Effective diameter
110
mm
Effective area
SD
95
cm²
Moving mass
MMS
7.8
g
Moving mass (without air load)
MMD
7.1
g

Suspensions

Stiffness
KMS
0.47
N/mm
Compliance
CMS
2140
µm/N
Equivalent volume to the compliance
VAS
26
L
Mechanical resistance
RMS
0.56
N·s/m

Dimensions

Nominal diameter
5.5
135 x 135
mm
Overall size
135 x 135
mm
Baffle cutout diameter
121
mm
Overall depth
70
mm
Flange thickness
6
mm
Mounting depth
64
mm
Volume occupied by the driver (estimated)
0.33
L
Net weight
1.1
kg
MONACOR SPH-135/AD SPL & Impedance
MONACOR SPH-135/AD Dimensions

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